Clean-out device for waste or soil pipes.



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STEPHEN B. MGMANAMIN, oF EREnEitIC'roN, NEW BRUNSWICK, CANADA, .AssIoNoRor ONE-HALE To WILLIAM H. IRVINE, or FEEDERICTON, NEW BRUNSWICK,

CANADA.

CLEAN-OUT DEVICE FOR- WASTE OR SOIL PIPES.

Patenten aan. as, raie.

Application led September 21, 1914. Serial No. 862,648.

To all whom t may concern Be it known that I, STEPHEN B. MCMANA- MIN, asubject of the King of Great Britain,

residing in Fredericton, Province of New" in said pipes, consist of acover or cap for an opening therein, the opening being provided withinternal screwv threads with which external screw threads on the coveror cap coperatc to removably secure the cover therein, the cover beingprovided with a flange projecting laterally of the screw threadedportion and packing being interposed between said flange and the end ofthe opening to seal the cover and prevent leakage thereof. ln thisconstruction the screw threads of the cap and the cooperating screwthreads of the lopening in 'the pipe are exposed to the water thereinwith the consequent rusting and corroding of the Same making it almostimpossible to remove the cover, and very often requiring the renewal ofthe portion with the screw threaded opening and the cap. Furthermore,the packing, usually consisting of rubber, is exposed to the gases inthe pipes withthe consequent quick deterioration of the saine andleakage.

It is the principal object of the present invention to overcome theabove disadvantage and to provide a clean-out device in which the' screwthreaded connection of the cover thereto is not exposed to the waters insaid pipe with the consequent rusting and corroding of thc same, and inwhich the packing when utilized is not exposed to the gases 't'rom thepipes and the consequent deterioration thereof.

In the drawing accompanying and forming a part of the specification,Figure 1 is a side elevation of a waste pipe with a cleanout devicecalked therein illustrating an einbodirnent of my invention. Fig. 2 is asectional side elevation of the clean-out device shown in Fig. 1. Fig. 3is a sectional side elevation illustrating an embodiment of my Clean-outdevices for waste' invention applied to a soil pipe; and Fig. 4 y

is a sectional side elevation of a clean-out device adapted to be calkedinto a pipe and,

showing another form of my invention..

Similar characters of reference designate like parts throughout thediiereiit views of' the drawing. A

t In ig. 1 of the drawing I have shown my invention as applied in theusual trap 7 of a waste pipe and consisting of a tubular member 5engaging and callited, as at 6, in an opening in said trap wherebyaccess may be had to the trap for cleaning or otherwise through themember 5. The outer end of the member 5 is closed by a cover 8 having ascrew connection therewith. To prevent ac' cess of the water in the trapto the screw threaded connection of the cover with the tubular member,the outer end of the tubular member has an annular recess 9, one wall10- of which recess is formed by the inner portion of the'tubular memberand the outer wall by a lip or flange 11 projecting laterally and in aplane parallel with the sides of the member 5. This lip 11 extendsbeyond the wall 10 of the recess and is provided with internal screwthreads.- The cover 8 has elxternal screw threads to have a screwthreaded connection with the threads of the lip ll1 and has an annularprojecting or ange portion 12 to engage in theannular recess 9, asuitable packing 13, such as a rubber composition or. fiber, beinginterposed between said lange and bottom of the recess 9. The coveradjacent and within the flange 12 has an annular portion which isAadapted to lie contiguous to or abut against the end of the wall 10 ofthe recess. It will be obvious that by this construction the water inthe pipe will have no access to the screw threaded connection of the capor cover withthe' member 5, with the consequent rusting and corroding ofthe same and therefore the cover may be readily unscrewed from andscrewed into the member 5 when it is desired to clean-out the trap orpipe. To facilitate the removal of the'cover it isso constructed thatmeans may betrapplied'tliereto to rotate the same, and in the presentinstance is shown as consistinigaof a shouldered boss 14 for theapplication of a wrench. s

In Fig. 3 I have sl'iown my invention applied directly-to'a soil pipe,said pipe ion y.flange 16 extending inwardly from the tubularmember 5and then in a plane parallel with the sides ot the member 5 but does notextend to the end` ot the member 5. The

member 5 adjacent its end is provided with screw threads in which thescrew threadsv yon the cover S cooperate to secure the cover thereto.

Variations may be resorted to within the scope oi my invention.

Having thus described my invention i claim c l. A clean-out device forpipes or traps, comprising in'combination a tubular projecting `portionhaving an opening communicating with the pipe' or trap,l an annular`Aseat inthe end of said portion, the outerr wall of which seat extendsbeyond the inner wall and is provided with internal screw threads, and acap to close said opening yhaving a screw threaded portion-tohave screwthreaded connection with the screw threads of the outer wall and havinga portion to engage in the seat, substantially as' and'for the purposespeciied.

2. A clean-out ydevice for pipes or traps,"

" "comprising in combination a tubular projecting portion having aniopening communicating with the pipe or trap, an annular recess in ,theend of said portion, the 40,

"the inner wall of the recess and -provided I, portion,

having a outer wall-of which recess extends beyond with internal screwlthreads and the outer face ot' the inner wall or' the recess being acontinuation ot the inner :tace of the tubular and a cover to close saidopening flange provided with a screw threaded portion to have screw,Athreaded connection with the screw threads of the i outer wall of therecess and an unthreaded portion to engage inthe recess", and saidcover'belng constituted to receive releasing means, substantially as andfor the purpose specified.

3. A clean-out device vfor pipes or traps,

vcomprising in combination a tubular projecting portion having anopening communicating with the pipe or trap, an annular recess in theend of said portion, the outer wall ot which recess extends beyond theinner wall and is provided with internal screw threads, packing seatedin the bottom of the recess, -a cover to close said openling having aportion screw threaded to have screw threaded connection with the screwthreads of the outer wall of the recess and an unthreaded portionvtoengage in the recess and with the packing therein, substantially as andfor the purpose speciiied. v

4. A device ot the class specified, coniprising in combination a tubularmember adapted to be caiked into a waste pipe or trap; an annular recessin the outer end of said member the inner Jtace of the vouter wall ofwhich recess is threaded adjacent its outer end; and a cover to closethe outer end'of said member having a flange with external screw threadsto have screw threaded connection with the screw threads of the annularrecess-and an'unthreaded portion to engage in the Unthreaded portion lofthe recess, substantially as and for the purpose specified.y

5. The combination with a waste pipe or jtrap therennof a 4tubularmember to en gage in an opening in the pipe or trap and communicatetherewith; a lip adjacentthe outer end ot the member extending inwardlyand then in plane lparallel withsaid member forming `an annular recessthe outer wall or' which extends bevond the inner wall; internal` screwthreads on the outer wall of the recess packing'seated in the bottom ofthe recess; a cover i`or the outer end of the tubular member having anannular screw threaded iange adaptedto have connection with the screwthreads of the outer wall and having an unthreaded portion to extend inthe recess and engage the packing, and' said cover having means for theapplication of a wrench, substantially as and `for the purposespeciiied.

, STEPHEN B. McMANAli/HN. Witnesses:

F. XV. BARBOUR, E. G. CRAWFORD.

